Improvement in steam-boilers



UNITED STATES ENCE,

PATENT ANSON F. BARTON, OF DEDHAM, MASSACHUSETTS.

IMPROVEMENT IN STEAM-BOILERS.

Specification forming part of Letters Patent No. 40,016, dated September 22, 1863.

,resident of Dedham, in the county of Norfolk and State oflvlassachusetts, have made an invention of a new and useful Improvement in Steam Boilers or Generators 5 and I do hereby declare the same to be fully described in the following specific-ation, and represented in the' accompanying drawings, of which- Figure 1 is a longitudinal section of a furnace and a boiler thereof, the latter being made in accordance with my invention. Fig. 2 is a transverse section of the same.

The nature of my invention consists in an improved boiler or steam-generator as construeted with a smoke passage or ue and a crescent-shaped addition or water-vessel, conibined and arranged with a main cylinder or boiler, substantially in manner and so as to operate as hereinafter specified.

In the drawings, A denotes the briclrworli for supporting the boiler and lits addition, while B is the furnace, C the grate, and D the ashvpit. 'lhe furnace is arranged directly underneath the front third part ot' the main portion E ofthe boiler, which is a hollow cylindrical vessel, and may be provided with a series of smoke fines or tubes extending through it longitudinally and -opening out of each end ot' it.

To opposite sides of the boiler and extending underneath it, in the crescent form, as Shown in Fig. 2, is aixed a-n auxiliary boiler or Water vessel, F, which at its junctions with the cylindrical boiler has openings a c leading into it, each ot' such openings being situated both above and below the water-line ofthe said part E. The length ot' this crescent-shaped vessel is to be about-two thirds that of the vessel or boiler E,and the two vessels are also to be connected by a pipe, G, leading from the rear end of one into the rear end of the other and close to their bottoms. There is arranged between the vessels E and F a smoke-pas sage, H, which is to lead the smoke from the fire-place or furnace and longitudinally between the two vessels, the same being in order to heat both vessels by the same column of smoke. When the boiler and its auxiliary vessel are supplied with water, and heat is applied to them to heat such water and produce steam, there will be a free circulation through the two vessels.

If desirable the auxiliary vessel may be arranged directly over the furnace, so that the heat thereof may act directly on its bottom surface, and thence pass back through the intermediate tlue, and not only heat the under surface ot the main boiler, but the top or upper surface of the auxiliary water-vessel or boiler. l

In Fig. l ofthe drawings, the smoke is ex hibihed as passing from the passage H into a chamber or flue, I, and thence through the tubes b b b of the main boiling-vessel E and into a chamber, K, at the front thereof. Out of this chamber the smoke passes into an escape pipe or flue.

By means of the auxiliary water-vessel F, combined and arranged with the main boiler E and the flue H, as described, much of the heat, that is frequently absorbed by the brickwork and lost, can be employed to advantage in the generation of steam.

l claim- The improved steam-generator as constructed with the smoke-flue H and the crescent-shaped water-vessel F, combined and arranged with 'the main boiler E, substantially in manner and so as to operate ns specitied.

y ANSON F. BARTON.

Witnesses:

GEORGE NEwooMB, S. M. NoRRrs. 

